<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <form action="http://www.baidu.com">
        用户名:<input type="text" name="username" maxlength="5" value="薛苗" placeholder="用户名"><br>
        密码:<input type="password" name="password" placeholder="密码"><br>
        性别:<input type="radio" name="gender" value="m" id="r1"><label for="r1">男</label>
            <input type="radio" name="gender" checked value="w" id="r2"><label for="r2">女</label><br>
        兴趣爱好:<input type="checkbox" name="hobby" checked value="cy">抽烟
                <input type="checkbox" name="hobby" value="hj">喝酒
                <input type="checkbox" name="hobby" value="tt">烫头<br>
        生日:<input type="date" name="birthday"><br>
        靓照:<input type="file" name="photo"><br>
        所在地:<select name="city">
                <option value="bj"> 北京</option>
                <option value="sh"> 上海</option>
                <option value="gz"> 广州</option>
                <option selected value="nj"> 南京</option>
                <option value="hz"> 杭州</option>
              </select><br>
        <input type="submit" value="注册">
        <input type="reset" value="重置">
        <input type="button" value="按钮">
        <hr>
        <button type="submit">注册</button>
        <button type="reset">重置</button>
        <button type="button">按钮</button>
    </form>
</body>
</html>